Development of a Non-collinear Nonlinear Ultrasonic-Based Technique for the Assessment of Crack Tip Deformation

Thanseer, P M and Metya, A K and Palit Sagar, S (2017) Development of a Non-collinear Nonlinear Ultrasonic-Based Technique for the Assessment of Crack Tip Deformation. Journals of Materials Engineering and Performance, 26(6) (IF-1.331). pp. 2632-2639.

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Abstract

Non-collinear nonlinear ultrasonic (NCNLU) wave mixing technique has been established to study the localized plastic deformation at the crack tip during fatigue. A pair of ultrasonic shear wave was mixed non-collinearly to obtain a longitudinal wave of frequency equal to the sum of the two shear wave frequencies under a resonant condition. Experiments were carried out on notched 9Cr-1Mo 3-point bend specimen during high-cycle fatigue. The variation of the NCNLU parameter with the stress accumulation at the crack tip during the fatigue crack initiation

Item Type: Article
Uncontrolled Keywords: High-cycle fatigue; non-collinear wave mixing; non-collinear; nonlinear ultrasonic; stress zone; crack tip
Subjects: Materials Science > Materials Charcterization
Divisions: Metal Extraction and Forming
Depositing User: Users 5 not found.
Date Deposited: 18 Aug 2017 12:51
Last Modified: 20 Sep 2017 09:32
URI: http://eprints.nmlindia.org/id/eprint/7635

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